點擊按鈕彈出懸浮窗口的小例子

 

package com.example.windowmnagerexcercise;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.graphics.PixelFormat;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.webkit.WebView.FindListener;
import android.widget.Button;
import android.widget.ImageView;


public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button button=(Button) findViewById(R.id.button1);
        final LayoutInflater inflater=getLayoutInflater();
        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                WindowManager windowManager=(WindowManager) getSystemService(Context.WINDOW_SERVICE);
                WindowManager.LayoutParams wmParams=new WindowManager.LayoutParams();
                wmParams.type =WindowManager.LayoutParams.TYPE_PHONE; // 設置window type
                wmParams.format =PixelFormat.RGBA_8888;// 設置圖片格式，效果爲背景透明
                /*
                    * 下面的flags屬性的效果形同“鎖定”。 懸浮窗不可觸摸，不接受任何事件,同時不影響後面的事件響應。
                    */
                wmParams.flags=WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
                wmParams.gravity = Gravity.RIGHT| Gravity. CENTER_VERTICAL; // 調整懸浮窗口至右側中間
                // 以屏幕左上角爲原點，設置x、y初始值
                wmParams.x = 0;
                wmParams.y = 0;

                // 設置懸浮窗口長寬數據
                wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
                wmParams.height =WindowManager.LayoutParams.WRAP_CONTENT;
                //注意此處的p_w_picpathview必須不屬於某個父控件，否則報錯。
                ImageView p_w_picpathView=new ImageView(getApplicationContext());
                p_w_picpathView.setImageResource(R.drawable.e);
                windowManager.addView(p_w_picpathView, wmParams);
            }
        });

    }


}